Battery pack



FIG. 1 is a perspective view of a battery pack in accordance with the new design;

FIG. 2 is a front elevational view of the battery pack of FIG. 1;

FIG. 3 is a rear elevational view of the battery pack of FIG. 1.

FIG. 4 is a right side elevational view of the battery pack of FIG. 1; the left side elevational view is a mirror image of FIG. 4;

FIG. 5 is a top plan view of the battery pack of FIG. 1; and,

FIG. 6 is a bottom plan view of the battery pack of FIG. 1. 

CLAIM The ornamental design for a battery pack, as shown. 